re: Tragedy of the commons
"...if we want real costs to dictate to the market then how do you suggest people be charged for pollution and its mitigation? I loathe taxation as the tool of choice for "pseudo-Green" politicians, but I'd like to see an alternative that more directly moved the market towards efficiency and innovation."
So, you mean assuming Freeman Dyson is completely wrong, and that are Humans are actually emitted CO2 which will cause within a century or two the ice caps to melt and cause rising sea levels which will flood coastal cities?
Well, you could establish a fund like the nuclear industry does which pays the costs caused by such an event.
But I don't think anyone, even Al Gore actually believes such nonsense.